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EP3319862A1 - Locking device for an adjustable steering column of a motor vehicle - Google Patents

Locking device for an adjustable steering column of a motor vehicle

Info

Publication number
EP3319862A1
EP3319862A1 EP16732630.5A EP16732630A EP3319862A1 EP 3319862 A1 EP3319862 A1 EP 3319862A1 EP 16732630 A EP16732630 A EP 16732630A EP 3319862 A1 EP3319862 A1 EP 3319862A1
Authority
EP
European Patent Office
Prior art keywords
actuating lever
locking device
stop
clamping
damping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16732630.5A
Other languages
German (de)
French (fr)
Other versions
EP3319862B1 (en
Inventor
Hieronymus Schnitzer
Ciprian Paltinisanu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp AG
ThyssenKrupp Presta AG
Original Assignee
ThyssenKrupp AG
ThyssenKrupp Presta AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ThyssenKrupp AG, ThyssenKrupp Presta AG filed Critical ThyssenKrupp AG
Priority to PL16732630T priority Critical patent/PL3319862T3/en
Publication of EP3319862A1 publication Critical patent/EP3319862A1/en
Application granted granted Critical
Publication of EP3319862B1 publication Critical patent/EP3319862B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
    • B62D1/184—Mechanisms for locking columns at selected positions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
    • B62D1/187—Steering columns yieldable or adjustable, e.g. tiltable with tilt adjustment; with tilt and axial adjustment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
    • B62D1/19—Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible

Definitions

  • the invention relates to a locking device for an adjustable steering column of a motor vehicle, with an attached to an end portion of a clamping bolt actuating lever which cooperates with a pressure plate of a clamping mechanism such that upon rotation of the actuating lever to the clamping bolt axis in the closing direction generates a clamping force in the direction of the clamping bolt axis and thereby the steering column is clamped in the locking device and the application force is reduced during a rotation of the actuating lever in the opening direction, so that the clamping is released and the steering column is freely adjustable.
  • Such locking devices are for example from the
  • the object of the invention is to provide a locking device of the type mentioned, the noise in the locking and unlocking of the operating lever permanently and reliably attenuates, can be easily manufactured and saves space.
  • the inventive solution provides that the pressure plate arranged at a radial distance from the clamping bolt and in the direction of the clamping pin projecting stop finger which engages in a window-like recess of the actuating lever, so that the rotation of the actuating lever possible, but by abutment of opposite abutment surfaces of the recess on the stop finger both in the opening direction and in the opposite direction
  • Closing direction is limited, and that at least one of
  • Stop surfaces has a damping cover.
  • the damping cover serves as a stop damper for the movement of the actuating lever, at least in the opening direction.
  • the arrangement with window-like recess, stop finger and damping cover is simple in design and can be produced in an equally simple manner, with only low production costs incurred.
  • the wear of the damping cover is low, so that the damping effect of the locking device according to the invention is maintained for a long time. And even if, after all, the dampening cover should be worn out, it can be done in the simplest possible way and with the least possible effort
  • the damping cover may be made of a natural or synthetic elastomer or a plastic.
  • plastic in connection with the cover a natural
  • Opening stop surface provided with the damping cover In this embodiment, the movement of the operating lever is damped in the opening direction. If the movement of the actuating lever should also be damped in the closing direction, we recommend a
  • the damping cover is designed as a plastic frame, covering both stop surfaces and two the two stop surfaces connecting boundary surfaces of the window-like recess.
  • the plastic frame may be formed integrally or in several parts, said boundary surfaces of the window-like recess are not completely covered by a multi-part plastic frame.
  • Opening stop surface additionally comprises a damping element for damping the movement of the actuating lever.
  • damping cover also be formed on a stop in the closing direction of the operating lever
  • Closing stop surface additionally comprises a damping element for damping the movement of the actuating lever.
  • the damping element is a rubber insert. This can be provided particularly cost.
  • the damping element is designed in the form of one or two leaf springs.
  • Damping element also be designed in the form of an inwardly directed curvature.
  • the invention can be further improved by the measure that reduces the radial distance in relation to the clamping bolt axis between the boundary surfaces of the window-like recess in the direction of the ⁇ Maschinensanschlag construction so that the stop finger when approaching the ⁇ réellesanschlag construction with increasing force between the two boundary surfaces is trapped. As a result, the movement of the actuating lever is braked in the opening direction and thus attenuated the force of the impact on the stop surface.
  • one of the boundary surfaces is provided with a bent leaf spring such that it is first compressed upon actuation of the actuating lever in the opening direction of the saug contemplatden stop finger to relax again when the stop finger on the
  • Stop finger of the clamping bolt to be guided through the window-like recess, also to the damping at the stop of the
  • Figure 1 a perspective view of an adjustable
  • FIG. 2 a detail view from FIG. 1;
  • FIG. 3 a perspective view as in FIG. 1, but in FIG
  • FIG. 4 shows a detail view from FIG. 3;
  • Figure 5 is a perspective view of an adjustable steering column with an exploded view of the main components of the locking device according to the invention
  • Figure 6 a detailed view of a window-like invention
  • FIG. 7 as in FIG. 6, but additionally with rubber insert
  • FIG. 8 detailed view of a window-like device according to the invention
  • FIG. 9 detailed view as in FIG. 6, but additionally with an inward directed curvature in front of the opening stop surface;
  • Figure 10 Detail view as Figure 6, but with two additional
  • Figure 1 1 Detail view as Figure 6, but in addition with bent
  • Leaf spring in front of a boundary surface of the window-like recess.
  • Steering spindle bearing unit 3 is rotatably mounted.
  • Steering spindle bearing unit 3 is also at one to be fastened to the vehicle body not shown carrier unit 4 to a
  • Swivel axis 5 pivotally mounted. To fix the
  • a locking device 6 is provided, which in
  • the locking device 6 has a clamping bolt 7, which is connected in its one end portion 8 with an actuating lever 9, so that the clamping bolt axis 10 passes through the actuating lever 9 therethrough.
  • a pressure plate 1 1 is also arranged, which cooperates with two arranged between the pressure plate 1 1 and the actuating lever 9 pins 12, 13, so that upon actuation of the actuating lever 9, these pins 12, 13 about the clamping bolt axis 10 relative to the Pressure plate 1 1 to be twisted.
  • the pins 12, 13 occupy a new angular position relative to the clamping bolt axis 10, so that their length projected onto the clamping bolt axis 10 is changed.
  • the projected length is shortened, causing a loosening of the clamping of the locking device 6, so that the steering shaft bearing unit 3 about the pivot axis 5 relative to the support unit 4 is pivotable because of the shortening of the projected length in the opening direction 14, the clamping force of the clamping bolt 7 is reduced.
  • the actuating lever 9 is moved in the closing direction 15 (see FIG. 1), the rotation of the actuating lever 9, in cooperation with the pins 12, 13 and the pressure plate 11, causes an extension of the projected length, which causes the locking device 6 to be tightened in the direction of Clamping pin axis 10 causes, so that the
  • Steering spindle bearing unit 3 is immovably connected by means of the locking device 6 with the carrier unit 4 by clamping engagement.
  • the pins 12, 13 are therefore also known by the term tilting pin.
  • cam elements or rolling bodies as known in the art, can be used instead of the tilting pins 12, 13 cam elements or rolling bodies as known in the art.
  • the pressure plate is then formed by a cam which is rotated relative to a counter cam.
  • the alternatively proposed rolling bodies then run on the cam to form a rolling contact instead of a sliding contact.
  • Actuating lever is not rotated about the clamping bolt axis of the clamping bolt itself, however, a relative rotation of the cam elements or the tilting pins is achieved.
  • Opening direction 14 and limited in the closing direction 15 by the pressure plate 1 1 is provided with a stop finger 16 which is disposed on the pressure plate 1 1 at a radial distance to the clamping pin axis 10 and protrudes in the direction of the clamping pin axis 10 of the pressure plate 1 1 to the actuating lever 9 ,
  • the actuating lever 9 is provided with a window-like recess 17, into which the stop finger 16 protrudes.
  • the window-like recess 17 is so far expanded in the direction of rotation 14, 15 of the actuating lever 9 that the actuating lever 9 can cover a predetermined angular range until the
  • Plastic frame part is formed, which the impact of the
  • Stop finger 16 dampens.
  • Plastic frame part 20 which covers the opening stop surfaces 18, a second plastic frame part 21 is provided which the
  • Stop finger 16 dampens when the inventive
  • the two plastic frame parts 20, 21 may separately or integrally as a complete plastic frame 20, 21, which is the window-like
  • Recess 17 completely surrounds, preferably as a 2K component to be executed.
  • the damping effect additionally provided a rubber insert 22 as a damping element.
  • the rubber pad 22 is disposed on the opening stopper surface 18.
  • Opening movement of the actuating lever 9 dampens particularly well.
  • the bent leaf spring 25 is compressed when passing the stop finger 16 and then holds the stop finger 16 in the relaxed or partially relaxed state in contact with the opening stop surface 18th
  • the said boundary surfaces 26, 27 of the window-like recess 17 need not necessarily have the same width to each other over the entire width of the window-like recess 17.
  • Opening stop surface 18 is reduced so that the stop finger 16 is clamped as it approaches the opening stop surface 18 with increasing force between the two boundary surfaces 26 and 27. Thereby, the opening movement of the operating lever 9 in
  • Opening direction 14 is particularly well braked and damped.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Vibration Dampers (AREA)

Abstract

A locking device (6) for an adjustable steering column (1) of a motor vehicle, with an actuating lever (9) which is attached to an inner region (8) of a clamping bolt (7) and interacts with a pressure plate (11) of a clamping mechanism in such a manner that, when the actuating lever (9) rotates about the clamping bolt axis (10) in the closing direction (15), a clamping force is produced in the direction of the clamping bolt axis (10) and, in the process, the steering column (1) is firmly clamped in the locking device (6), and, when the actuating lever (9) rotates in the opening direction (14), the clamping force is reduced, and therefore the clamping is released and the steering column (1) becomes freely adjustable, is improved in respect of a simply configured damping of the stops of the actuating lever (9), in order to avoid stop noises, by the pressure plate (11) having a stop finger (16) which is arranged at a radial distance from the clamping bolt (7), protrudes in the direction of the clamping bolt axis (10) and engages in a window-like recess (17) of the actuating lever (9) such that rotation of the actuating lever (9) is possible, but is limited both in the opening direction (14) and in the closing direction (15) by striking opposite stop surfaces (18, 19) of the window-like recess (17) on the stop finger (16), and that at least one of the stop surfaces (18, 19) has a damping covering (20, 21).

Description

Feststellvorrichtung für eine verstellbare Lenksäule eines  Locking device for an adjustable steering column of a

Kraftfahrzeugs  motor vehicle

Die Erfindung betrifft eine Feststellvorrichtung für eine verstellbare Lenksäule eines Kraftfahrzeugs, mit einem an einem Endbereich eines Klemmbolzens angebrachten Betätigungshebel, der mit einer Druckplatte eines Klemmmechanismus derart zusammenwirkt, dass bei Drehung des Betätigungshebels um die Klemmbolzenachse in Schließrichtung eine Zuspannkraft in Richtung der Klemmbolzenachse erzeugt und dabei die Lenksäule in der Feststellvorrichtung festgeklemmt wird und bei einer Drehung des Betätigungshebels in Öffnungsrichtung die Zuspannkraft reduziert wird, so dass die Klemmung gelöst und die Lenksäule frei verstellbar wird. The invention relates to a locking device for an adjustable steering column of a motor vehicle, with an attached to an end portion of a clamping bolt actuating lever which cooperates with a pressure plate of a clamping mechanism such that upon rotation of the actuating lever to the clamping bolt axis in the closing direction generates a clamping force in the direction of the clamping bolt axis and thereby the steering column is clamped in the locking device and the application force is reduced during a rotation of the actuating lever in the opening direction, so that the clamping is released and the steering column is freely adjustable.

Derartige Feststellvorrichtungen sind beispielsweise aus der Such locking devices are for example from the

DE 10 2012 100 486 B3 oder der DE 10 201 1 055 410 A1 bekannt. Bei den bekannten Feststellvorrichtungen sind auch Dämpfer zur Dämpfung der Bewegung des Betätigungshebels vorgesehen, damit dieser keine metallischen Geräusche in den Endanschlagbereichen verursacht. Des Weiteren offenbart die US 2015/0090068 A1 eine Feststellvorrichtung mit Dämpfungsanordnung für den Betätigungshebel, wobei ein Rollenpuffer in der Freigabesteilung in Kontakt mit einem Wegbegrenzer steht. Nachteilig dabei ist die komplexe Herstellung eines derartigen Hebels. Zudem würde ein im Lauf der Zeit verschlissener Rollenpuffer die Geräuschdämpfung nicht mehr sicherstellen können. DE 10 2012 100 486 B3 or DE 10 201 1055 410 A1. In the known locking devices and dampers for damping the movement of the actuating lever are provided so that it causes no metallic noise in the Endanschlagbereichen. Furthermore, US 2015/0090068 A1 discloses a locking device with damping arrangement for the actuating lever, wherein a roller buffer in the release pitch is in contact with a Wegbegrenzer. The disadvantage here is the complex production of such a lever. In addition, a worn over time roll buffer could no longer ensure the noise attenuation.

Aufgabe der Erfindung ist es, eine Feststellvorrichtung der eingangs genannten Art bereitzustellen, die Geräusche bei der Verriegelung und Entriegelung des Betätigungshebels dauerhaft und zuverlässig dämpft, leicht hergestellt werden kann und Bauraum einspart. Die erfindungsgemäße Lösung sieht vor, dass die Druckplatte einen im radialen Abstand zum Klemmbolzen angeordneten und in Richtung der Klemmbolzenachse vorstehenden Anschlagfinger aufweist, der in eine fensterartige Aussparung des Betätigungshebels eingreift, so dass die Drehung des Betätigungshebels möglich, aber durch Anschlag von gegenüberliegenden Anschlagflächen der Aussparung am Anschlagfinger sowohl in Öffnungsrichtung als auch in die entgegengesetzte The object of the invention is to provide a locking device of the type mentioned, the noise in the locking and unlocking of the operating lever permanently and reliably attenuates, can be easily manufactured and saves space. The inventive solution provides that the pressure plate arranged at a radial distance from the clamping bolt and in the direction of the clamping pin projecting stop finger which engages in a window-like recess of the actuating lever, so that the rotation of the actuating lever possible, but by abutment of opposite abutment surfaces of the recess on the stop finger both in the opening direction and in the opposite direction

Schließrichtung begrenzt ist, und dass mindestens eine der Closing direction is limited, and that at least one of

Anschlagflächen eine dämpfende Abdeckung aufweist. Die dämpfende Abdeckung dient hier als Anschlagdämpfer für die Bewegung des Betätigungshebels zumindest in Öffnungsrichtung. Die Anordnung mit fensterartiger Aussparung, Anschlagfinger und dämpfender Abdeckung ist einfach konstruiert und kann auf ebenso einfache Weise hergestellt werden, wobei nur geringe Fertigungskosten anfallen. Die Abnutzung der dämpfenden Abdeckung ist gering, so dass die Dämpfungswirkung der erfindungsgemäßen Feststellvorrichtung lange Zeit erhalten bleibt. Und selbst wenn schließlich die dämpfende Abdeckung doch abgenutzt sein sollte, kann sie auf denkbar einfachste Weise und mit geringstem Stop surfaces has a damping cover. The damping cover serves as a stop damper for the movement of the actuating lever, at least in the opening direction. The arrangement with window-like recess, stop finger and damping cover is simple in design and can be produced in an equally simple manner, with only low production costs incurred. The wear of the damping cover is low, so that the damping effect of the locking device according to the invention is maintained for a long time. And even if, after all, the dampening cover should be worn out, it can be done in the simplest possible way and with the least possible effort

Arbeitsaufwand gegen eine neue ausgewechselt werden. Die dämpfende Abdeckung kann aus einem natürlichen oder synthetischen Elastomer oder einem Kunststoff gefertigt sein. Im weiteren werden mit dem Begriff Kunststoff in Zusammenhang mit der Abdeckung ein natürliches Work effort can be substituted for a new one. The damping cover may be made of a natural or synthetic elastomer or a plastic. In addition, the term plastic in connection with the cover a natural

Elastomer oder ein synthetisches Elastomer mit einbezogen, zur Elastomer or a synthetic elastomer included, for

Vermeidung der jeweils erforderlichen Aufzählung. Avoiding the required list.

Gemäß einer bevorzugten Ausführungsform ist eine den Anschlag in Öffnungsrichtung des Betätigungshebels bildende According to a preferred embodiment, a stop forming in the opening direction of the actuating lever

Öffnungsanschlagfläche mit der dämpfenden Abdeckung versehen. Bei dieser Ausführungsform wird die Bewegung des Betätigungshebels in Öffnungsrichtung gedämpft. Soll die Bewegung des Betätigungshebels auch in Schließrichtung gedämpft werden, empfiehlt sich eine Opening stop surface provided with the damping cover. In this embodiment, the movement of the operating lever is damped in the opening direction. If the movement of the actuating lever should also be damped in the closing direction, we recommend a

Ausführungsform, bei der beide Anschlagflächen die dämpfende Embodiment in which both abutment surfaces the damping

Abdeckung aufweisen. In diesem Fall ist es vorteilhaft, wenn die dämpfende Abdeckung als Kunststoffrahmen ausgestaltet ist, der beide Anschlagflächen und zwei die beiden Anschlagflächen verbindende Begrenzungsflächen der fensterartigen Aussparung abdeckt. Cover have. In this case, it is advantageous if the damping cover is designed as a plastic frame, covering both stop surfaces and two the two stop surfaces connecting boundary surfaces of the window-like recess.

Der Kunststoffrahmen kann einstückig oder mehrteilig ausgebildet sein, wobei die genannten Begrenzungsflächen der fensterartigen Aussparung durch einen mehrteiligen Kunststoffrahmen nicht komplett abgedeckt werden. The plastic frame may be formed integrally or in several parts, said boundary surfaces of the window-like recess are not completely covered by a multi-part plastic frame.

Die Dämpfungswirkung kann noch verbessert werden durch die The damping effect can be further improved by the

Maßnahme, dass die dämpfende Abdeckung an der Measure that the damping cover on the

Öffnungsanschlagsfläche zusätzlich ein Dämpfungselement zur Dämpfung der Bewegung des Betätigungshebels aufweist. Hierdurch wird die Bewegungsenergie des Betätigungshebels bei Kontakt mit dem Opening stop surface additionally comprises a damping element for damping the movement of the actuating lever. As a result, the kinetic energy of the actuating lever in contact with the

Dämpfungselement auf der Öffnungsanschlagfläche noch wirkungsvoller gedämpft. Damping element on the opening stop surface even more effectively damped.

Falls auch in Schließrichtung Geräusche beim Anschlag des If in the closing direction noises at the stop of

Betätigungshebels besonders gut gedämpft werden sollen, wird Actuating lever to be particularly well attenuated is

empfohlen, dass die dämpfende Abdeckung auch an einer den Anschlag in Schliessrichtung des Betätigungshebels bildende It is recommended that the damping cover also be formed on a stop in the closing direction of the operating lever

Schließanschlagsfläche zusätzlich ein Dämpfungselement zur Dämpfung der Bewegung des Betätigungshebels aufweist. Closing stop surface additionally comprises a damping element for damping the movement of the actuating lever.

In einer einfachen Ausgestaltungsvariante der vorgenannten In a simple embodiment variant of the aforementioned

Ausführungsform ist das Dämpfungselement eine Gummieinlage. Diese kann besonders kostengünstig bereitgestellt werden. Embodiment, the damping element is a rubber insert. This can be provided particularly cost.

In einer zweiten Ausgestaltungsvariante ist das Dämpfungselement in Form von ein oder zwei Blattfedern ausgestaltet. In a second embodiment variant, the damping element is designed in the form of one or two leaf springs.

In einer dritten vorteilhaften Ausgestaltungsvariante kann das In a third advantageous embodiment variant, the

Dämpfungselement auch in Form einer nach innen gerichteten Wölbung ausgestaltet sein. Die Erfindung lässt sich noch verbessern durch die Maßnahme, dass sich der in Bezug auf die Klemmbolzenachse radiale Abstand zwischen den Begrenzungsflächen der fensterartigen Aussparung in Richtung auf die Öffnungsanschlagsfläche zu verringert, so dass der Anschlagfinger bei Annäherung an die Öffnungsanschlagfläche mit zunehmender Kraft zwischen den beiden Begrenzungsflächen eingeklemmt wird. Dadurch wird die Bewegung des Betätigungshebels in Öffnungsrichtung gebremst und somit die Wucht des Aufpralls auf die Anschlagfläche gedämpft. Damping element also be designed in the form of an inwardly directed curvature. The invention can be further improved by the measure that reduces the radial distance in relation to the clamping bolt axis between the boundary surfaces of the window-like recess in the direction of the Öffnungsanschlagfläche so that the stop finger when approaching the Öffnungsanschlagfläche with increasing force between the two boundary surfaces is trapped. As a result, the movement of the actuating lever is braked in the opening direction and thus attenuated the force of the impact on the stop surface.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, dass eine der Begrenzungsflächen mit einer abgeknickten Blattfeder versehen ist derart, dass sie beim Betätigen des Betätigungshebels in Öffnungsrichtung von dem vorbeigleitenden Anschlagfinger zunächst komprimiert wird, um sich wieder zu entspannen, wenn der Anschlagfinger an der In a further embodiment of the invention, it is provided that one of the boundary surfaces is provided with a bent leaf spring such that it is first compressed upon actuation of the actuating lever in the opening direction of the vorbeigleitenden stop finger to relax again when the stop finger on the

Öffnungsanschlagfläche anliegt, und dabei den Anschlagfinger gegen die Öffnungsanschlagfläche drückt. Durch die Blattfeder wird die Abutting stop surface, thereby pressing the stopper finger against the Öffnungsanungsanschlagfläche. By the leaf spring is the

Hebelöffnungskraft erhöht. Lever opening force increased.

In einer Abwandlung des Erfindungsgedankens kann anstelle des In a modification of the inventive idea, instead of the

Anschlagfingers der Klemmbolzen durch die fensterartige Aussparung geführt sein, um ebenfalls die Dämpfung beim Anschlag des Stop finger of the clamping bolt to be guided through the window-like recess, also to the damping at the stop of the

Betätigungshebels zumindest in Öffnungsrichtung, vorzugsweise aber auch in Schließrichtung zu verbessern und ungewollte Geräusche zu unterdrücken. Operating lever at least in the opening direction, but preferably also in the closing direction to improve and suppress unwanted noise.

Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnungen näher erläutert. Die Figuren zeigen im Einzelnen: Embodiments of the invention are explained below with reference to the drawings. The figures show in detail:

Figur 1 : eine perspektivische Darstellung einer verstellbaren Figure 1: a perspective view of an adjustable

Lenksäule eines Kraftfahrzeugs mit erfindungsgemäßer Feststellvorrichtung im geschlossenen Zustand;  Steering column of a motor vehicle with inventive locking device in the closed state;

Figur 2: eine Detailansicht aus Figur 1 ; FIG. 2: a detail view from FIG. 1;

Figur 3: eine perspektivische Ansicht wie in Figur 1 , jedoch im FIG. 3: a perspective view as in FIG. 1, but in FIG

geöffneten Zustand; Figur 4: eine Detailansicht aus Figur 3; opened state; FIG. 4 shows a detail view from FIG. 3;

Figur 5: eine perspektivische Ansicht einer verstellbaren Lenksäule mit einer Explosionsdarstellung der wichtigsten Bauteile der erfindungsgemäßen Feststellvorrichtung; Figure 5 is a perspective view of an adjustable steering column with an exploded view of the main components of the locking device according to the invention;

Figur 6: eine Detailansicht einer erfindungsgemäßen fensterartigen Figure 6: a detailed view of a window-like invention

Aussparung mit eingesetztem, beidseitigem  Recess with inserted, two-sided

Kunststoffrahmen;  Plastic frame;

Figur 7: wie Figur 6, jedoch zusätzlich mit Gummieinlage; FIG. 7: as in FIG. 6, but additionally with rubber insert;

Figur 8: Detailansicht einer erfindungsgemäßen fensterartigen FIG. 8: detailed view of a window-like device according to the invention

Aussparung mit einseitiger dämpfender Abdeckung;  Recess with one-sided damping cover;

Figur 9: Detailansicht wie Figur 6, jedoch zusätzlich mit nach innen gerichteter Wölbung vor der Öffnungsanschlagfläche; FIG. 9: detailed view as in FIG. 6, but additionally with an inward directed curvature in front of the opening stop surface;

Figur 10: Detailansicht wie Figur 6, jedoch mit zwei zusätzlichen Figure 10: Detail view as Figure 6, but with two additional

Blattfedern vor der Öffnungsanschlagfläche;  Leaf springs in front of the opening stop surface;

Figur 1 1 : Detailansicht wie Figur 6, jedoch zusätzlich mit abgeknickter Figure 1 1: Detail view as Figure 6, but in addition with bent

Blattfeder vor einer Begrenzungsfläche der fensterartigen Aussparung.  Leaf spring in front of a boundary surface of the window-like recess.

In den Figuren 1 , 3 und 5 erkennt man eine verstellbare Lenksäule 1 eines Kraftfahrzeugs, bei der eine Lenkspindel 2 in einer In Figures 1, 3 and 5 can be seen an adjustable steering column 1 of a motor vehicle, in which a steering shaft 2 in a

Lenkspindellagereinheit 3 drehbar gelagert ist. Die Steering spindle bearing unit 3 is rotatably mounted. The

Lenkspindellagereinheit 3 ist außerdem an einer an der nicht gezeigten Fahrzeugkarosserie zu befestigenden Trägereinheit 4 um eine Steering spindle bearing unit 3 is also at one to be fastened to the vehicle body not shown carrier unit 4 to a

Schwenkachse 5 schwenkbar gelagert. Zur Fixierung der Swivel axis 5 pivotally mounted. To fix the

Lenkspindellagereinheit 3 an der Trägereinheit 4 in einem vorgewählten Schwenkwinkel ist eine Feststellvorrichtung 6 vorgesehen, die im Steering spindle bearing unit 3 on the support unit 4 in a preselected pivot angle, a locking device 6 is provided, which in

Wesentlichen an der Lenkspindellagereinheit 3 angeordnet ist und mit der Trägereinheit 4 zusammenwirkt. Die Feststellvorrichtung 6 weist einen Klemmbolzen 7 auf, der in seinem einen Endbereich 8 mit einem Betätigungshebel 9 verbunden ist, so dass die Klemmbolzenachse 10 durch den Betätigungshebel 9 hindurch geht. Auf dem Klemmbolzen 7 ist außerdem eine Druckplatte 1 1 angeordnet, die mit zwei zwischen der Druckplatte 1 1 und dem Betätigungshebel 9 angeordneten Stiften 12, 13 zusammenwirkt, so dass bei einer Betätigung des Betätigungshebels 9 diese Stifte 12, 13 um die Klemmbolzenachse 10 gegenüber der Druckplatte 1 1 verdreht werden. Dabei nehmen die Stifte 12, 13 eine neue Winkellage gegenüber der Klemmbolzenachse 10 ein, sodass ihre auf die Klemmbolzenachse 10 projizierte Länge geändert wird. Bei eine Drehung in Öffnungsrichtung 14 (Figuren 3 und 5) erfolgt eine Verkürzung der projizierten Länge, was ein Lösen der Klemmung der Feststellvorrichtung 6 bewirkt, so dass die Lenkspindellagereinheit 3 um die Schwenkachse 5 gegenüber der Trägereinheit 4 verschwenkbar ist, weil durch die Verkürzung der projizierten Länge in Öffnungsrichtung 14 die Zuspannkraft des Klemmbolzens 7 verringert wird. Wird hingegen der Betätigungshebel 9 in Schließrichtung 15 (siehe Figur 1 ) bewegt, so bewirkt die Drehung des Betätigungshebels 9 im Zusammenwirken mit den Stiften 12, 13 und der Druckplatte 1 1 eine Verlängerung der projizierten Länge, was ein Zuspannen der Feststellvorrichtung 6 in Richtung der Klemmbolzenachse 10 bewirkt, so dass die Is arranged substantially on the steering shaft bearing unit 3 and cooperates with the carrier unit 4. The locking device 6 has a clamping bolt 7, which is connected in its one end portion 8 with an actuating lever 9, so that the clamping bolt axis 10 passes through the actuating lever 9 therethrough. On the clamping bolt 7, a pressure plate 1 1 is also arranged, which cooperates with two arranged between the pressure plate 1 1 and the actuating lever 9 pins 12, 13, so that upon actuation of the actuating lever 9, these pins 12, 13 about the clamping bolt axis 10 relative to the Pressure plate 1 1 to be twisted. In this case, the pins 12, 13 occupy a new angular position relative to the clamping bolt axis 10, so that their length projected onto the clamping bolt axis 10 is changed. With a rotation in the opening direction 14 (Figures 3 and 5), the projected length is shortened, causing a loosening of the clamping of the locking device 6, so that the steering shaft bearing unit 3 about the pivot axis 5 relative to the support unit 4 is pivotable because of the shortening of the projected length in the opening direction 14, the clamping force of the clamping bolt 7 is reduced. If, on the other hand, the actuating lever 9 is moved in the closing direction 15 (see FIG. 1), the rotation of the actuating lever 9, in cooperation with the pins 12, 13 and the pressure plate 11, causes an extension of the projected length, which causes the locking device 6 to be tightened in the direction of Clamping pin axis 10 causes, so that the

Lenkspindellagereinheit 3 mittels der Feststellvorrichtung 6 unverrückbar mit der Trägereinheit 4 durch Klemmeingriff verbunden ist. Die Stifte 12, 13 sind deshalb auch unter dem Begriff Kippstift bekannt. Steering spindle bearing unit 3 is immovably connected by means of the locking device 6 with the carrier unit 4 by clamping engagement. The pins 12, 13 are therefore also known by the term tilting pin.

Es ist jedoch festzustellen, dass die Erfindung auch auf eine alternative, hier nicht gezeigte Ausführungsform der Feststellvorrichtung anwendbar ist. However, it should be noted that the invention is also applicable to an alternative, not shown embodiment of the locking device.

Insbesondere können in einer weiteren vorteilhaften Ausgestaltung der Erfindung können anstelle der Kippstifte 12, 13 Nockenelemente oder Rollkörper wie im Stand der Technik bekannt, eingesetzt werden. Die Druckplatte ist dann durch einen Nocken gebildet, der gegenüber einem Gegennocken verdreht wird. Die alternativ vorgeschlagenen Rollkörper laufen dann auf dem Nocken zu Bildung eine Roll-Kontaktes anstelle eines Gleitkontaktes. In particular, in a further advantageous embodiment of the invention, instead of the tilting pins 12, 13 cam elements or rolling bodies as known in the art, can be used. The pressure plate is then formed by a cam which is rotated relative to a counter cam. The alternatively proposed rolling bodies then run on the cam to form a rolling contact instead of a sliding contact.

Es ist auch denkbar und möglich, dass bei der Verdrehung des It is also conceivable and possible that during the rotation of the

Betätigungshebels um die Klemmbolzenachse der Klemmbolzen selbst nicht verdreht wird, allerding eine Relativdrehung der Nockenelemente oder der Kippstifte erreicht wird. Actuating lever is not rotated about the clamping bolt axis of the clamping bolt itself, however, a relative rotation of the cam elements or the tilting pins is achieved.

Die Drehbewegung des Betätigungshebels 9 wird sowohl in The rotational movement of the actuating lever 9 is in both

Öffnungsrichtung 14 als auch in Schließrichtung 15 begrenzt, indem die Druckplatte 1 1 mit einem Anschlagfinger 16 versehen ist, der an der Druckplatte 1 1 im radialen Abstand zur Klemmbolzenachse 10 angeordnet ist und in Richtung der Klemmbolzenachse 10 von der Druckplatte 1 1 zum Betätigungshebel 9 hervorsteht. Der Betätigungshebel 9 ist mit einer fensterartigen Aussparung 17 versehen, in die der Anschlagfinger 16 hineinragt. Die fensterartige Aussparung 17 ist in der Drehrichtung 14, 15 des Betätigungshebels 9 so weit ausgedehnt, dass der Betätigungshebel 9 einen vorbestimmten Winkelbereich überstreichen kann, bis der Opening direction 14 and limited in the closing direction 15 by the pressure plate 1 1 is provided with a stop finger 16 which is disposed on the pressure plate 1 1 at a radial distance to the clamping pin axis 10 and protrudes in the direction of the clamping pin axis 10 of the pressure plate 1 1 to the actuating lever 9 , The actuating lever 9 is provided with a window-like recess 17, into which the stop finger 16 protrudes. The window-like recess 17 is so far expanded in the direction of rotation 14, 15 of the actuating lever 9 that the actuating lever 9 can cover a predetermined angular range until the

Anschlagfinger 16 der Druckplatte 1 1 an eine von zwei Anschlagflächen 18, 19 der fensterartigen Aussparung 17 anstößt. Dadurch wird die Stop finger 16 of the pressure plate 1 1 to one of two abutment surfaces 18, 19 of the window-like recess 17 abuts. This will be the

Bewegung des Betätigungshebels 9 begrenzt und zwar sowohl in Movement of the actuating lever 9 limited both in

Öffnungsrichtung 14 als auch in Schließrichtung 15. Opening direction 14 and in the closing direction 15th

Wie man in Figur 8 erkennt, ist die Öffnungsanschlagsfläche 18, mit der der Anschlagfinger 16 die Bewegung des Betätigungshebels 9 in As can be seen in Figure 8, the opening stop surface 18, with the stop finger 16, the movement of the actuating lever 9 in

Öffnungsrichtung 14 begrenzt, mit einer im Wesentlichen C-förmigen dämpfenden Abdeckung 20 versehen, welche im Beispiel als Opening direction 14 limited, provided with a substantially C-shaped damping cover 20, which in the example as

Kunststoffrahmenteil ausgebildet ist, , welche den Aufprall der Plastic frame part is formed, which the impact of the

Öffnungsanschlagfläche 18 des Betätigungshebels 9 auf den Opening stop surface 18 of the actuating lever 9 on the

Anschlagfinger 16 dämpft. Stop finger 16 dampens.

Bei dem Ausführungsbeispiel gemäß Figur 6 ist neben dem In the embodiment of Figure 6 is in addition to the

Kunststoffrahmenteil 20, welches die Öffnungsanschlagflächen 18 abdeckt ein zweites Kunststoffrahmenteil 21 vorgesehen, welches die Plastic frame part 20, which covers the opening stop surfaces 18, a second plastic frame part 21 is provided which the

Schließanschlagfläche 19 abdeckt und so zusätzlich den Aufprall der Schließanschlagfläche 19 des Betätigungshebels 9 auf den Schließanschlagfläche 19 covers and thus additionally the impact of Schließanschlagfläche 19 of the actuating lever 9 on the

Anschlagfinger 16 dämpft, wenn die erfindungsgemäße Stop finger 16 dampens when the inventive

Feststellvorrichtung 6 geschlossen, also festgeklemmt wird. Die beiden Kunststoffrahmenteile 20, 21 können separat voneinander oder einstückig als kompletter Kunststoff rahmen 20, 21 , welcher die fensterartige Locking device 6 is closed, that is clamped. The two plastic frame parts 20, 21 may separately or integrally as a complete plastic frame 20, 21, which is the window-like

Aussparung 17 vollumfänglich umgibt, vorzugsweise als 2K-Bauteil, ausgeführt sein. Recess 17 completely surrounds, preferably as a 2K component to be executed.

Bei der in Figur 7 dargestellten Ausgestaltungsvariante ist zur In the embodiment variant shown in FIG

Verbesserung der Dämpfungswirkung zusätzlich eine Gummieinlage 22 als Dämpfungselement vorgesehen. Die Gummieinlage 22 ist auf der Öffnungsanschlagfläche 18 angeordnet. Improvement of the damping effect additionally provided a rubber insert 22 as a damping element. The rubber pad 22 is disposed on the opening stopper surface 18.

Bei der Ausgestaltungsvariante gemäß Figur 9 ist an der In the embodiment variant according to Figure 9 is at the

Öffnungsanschlagfläche 18 eine nach innen gerichtete Wölbung 23 aus Kunststoffmaterial angeordnet, die als Dämpfungselement die Open stop surface 18 an inwardly directed curvature 23 of plastic material arranged as the damping element

Öffnungsbewegung des Betätigungshebels 9 besonders gut dämpft. Opening movement of the actuating lever 9 dampens particularly well.

Bei der Ausgestaltungsvariante gemäß Figur 10 sind auf der In the embodiment variant according to Figure 10 are on the

Öffnungsanschlagfläche 18 zwei Blattfedern 24 als Dämpfungselemente angeordnet, um die Öffnungsbewegung des Betätigungshebels 9 wirkungsvoll zu dämpfen. Open stop surface 18 two leaf springs 24 arranged as damping elements to effectively dampen the opening movement of the actuating lever 9.

Bei der Ausführungsform gemäß Figur 1 1 ist eine abgeknickte Blattfeder 25 auf einer von zwei Begrenzungsflächen 26, 27, die die In the embodiment of Figure 1 1 is a bent leaf spring 25 on one of two boundary surfaces 26, 27, the

Öffnungsanschlagsfläche 18 und die Schließanschlagsfläche 19 der fensterartigen Aussparung 17 miteinander verbinden, angeordnet. Die abgeknickte Blattfeder 25 wird beim Vorbeigleiten des Anschlagfingers 16 komprimiert und hält dann im entspannten oder teilentspannten Zustand den Anschlagfinger 16 in Anlage an der Öffnungsanschlagsfläche 18. Opening stop surface 18 and the closing stop surface 19 of the window-like recess 17 interconnect, arranged. The bent leaf spring 25 is compressed when passing the stop finger 16 and then holds the stop finger 16 in the relaxed or partially relaxed state in contact with the opening stop surface 18th

Die genannten Begrenzungsflächen 26, 27 der fensterartigen Aussparung 17 müssen nicht zwangsläufig über die gesamte Breite der fensterartigen Aussparung 17 gleiche Abstände zueinander haben. In einer The said boundary surfaces 26, 27 of the window-like recess 17 need not necessarily have the same width to each other over the entire width of the window-like recess 17. In a

Weiterentwicklung der Erfindung ist sogar vorgesehen, dass sich der in Bezug auf die Klemmbolzenachse 10 radiale Abstand zwischen den Begrenzungsflächen 26, 27 in Richtung auf die Further development of the invention is even provided that the in With respect to the clamping bolt axis 10 radial distance between the boundary surfaces 26, 27 in the direction of the

Öffnungsanschlagfläche 18 zu verringert, so dass der Anschlagfinger 16 bei Annäherung an die Öffnungsanschlagfläche 18 mit zunehmender Kraft zwischen den beiden Begrenzungsflächen 26 und 27 eingeklemmt wird. Dadurch wird die Öffnungsbewegung des Betätigungshebels 9 in  Opening stop surface 18 is reduced so that the stop finger 16 is clamped as it approaches the opening stop surface 18 with increasing force between the two boundary surfaces 26 and 27. Thereby, the opening movement of the operating lever 9 in

Öffnungsrichtung 14 ganz besonders gut abgebremst und gedämpft. Opening direction 14 is particularly well braked and damped.

BEZUGSZEICHENLISTE LIST OF REFERENCE NUMBERS

Lenksäule steering column

Lenkspindel steering shaft

Lenkspindellagereinheit Steering shaft bearing unit

Trägereinheit support unit

Schwenkachse swivel axis

Feststellvorrichtung Locking device

Klemmbolzen clamping bolts

Endbereich end

Betätigungshebel actuating lever

Klemmbolzenachse Clamping bolt axis

Druckplatte printing plate

Stift pen

Stift pen

Öffnungsrichtung opening direction

Schließrichtung closing direction

Anschlagfinger stop finger

fensterartige Aussparung window-like recess

Öffnungsanschlagfläche Opening stop surface

Schließanschlagfläche Closing stop surface

Dämpfende Abdeckung Damping cover

Dämpfende Abdeckung Damping cover

Gummieinlage rubber insert

Wölbung bulge

Blattfedern leaf springs

abgeknickte Blattfeder bent leaf spring

Begrenzungsfläche boundary surface

Begrenzungsfläche boundary surface

Claims

PATENTANSPRÜCHE 1 . Feststellvorrichtung für eine verstellbare Lenksäule (1 ) eines 1 . Locking device for an adjustable steering column (1) of a Kraftfahrzeugs, mit einem an einem Endbereich (8) eines  Motor vehicle, with a at an end region (8) of a Klemmbolzens (7) angebrachten Betätigungshebel (9), der mit einer Druckplatte (1 1 ) eines Klemmmechanismus (7, 9, 1 1 , 12, 13) derart zusammenwirkt, dass bei Drehung des Betätigungshebels (9) um die Klemmbolzenachse (10) in Schließrichtung (15) eine Zuspannkraft in Richtung der Klemmbolzenachse (10) erzeugt und dabei die  Clamping bolt (7) mounted actuating lever (9) which cooperates with a pressure plate (1 1) of a clamping mechanism (7, 9, 1 1, 12, 13) such that upon rotation of the actuating lever (9) about the clamping pin axis (10) in Closing direction (15) generates a clamping force in the direction of the clamping bolt axis (10) and thereby the Lenksäule (1 ) in der Feststellvorrichtung (6) festgeklemmt wird und bei einer Drehung des Betätigungshebels (9) in Öffnungsrichtung (14) die Zuspannkraft reduziert wird, so dass die Klemmung gelöst und die Lenksäule (1 ) frei verstellbar wird, dadurch  Steering column (1) in the locking device (6) is clamped and upon rotation of the actuating lever (9) in the opening direction (14), the clamping force is reduced, so that the clamping solved and the steering column (1) is freely adjustable, characterized gekennzeichnet, dass die Druckplatte (1 1 ) einen im radialen Abstand zum Klemmbolzen (7) angeordneten und in Richtung der Klemmbolzenachse (10) vorstehenden Anschlagfinger (16) aufweist, der in eine fensterartige Aussparung (17) des Betätigungshebels (9) eingreift, so dass die Drehung des Betätigungshebels (9) möglich, aber durch Anschlag von gegenüberliegenden Anschlagflächen (18,19), der fensterartigen Aussparung (17) am Anschlagfinger (16) sowohl in Öffnungsrichtung (14) als auch in Schließrichtung (15) begrenzt ist, und dass mindestens eine der Anschlagflächen (18, 19) eine dämpfende Abdeckung (20, 21 ) aufweist.  characterized in that the pressure plate (1 1) at a radial distance from the clamping bolt (7) and in the direction of the clamping bolt axis (10) projecting stop finger (16) which engages in a window-like recess (17) of the actuating lever (9), so that the rotation of the actuating lever (9) is possible, but limited by abutment of opposite stop surfaces (18,19), the window-like recess (17) on the stop finger (16) both in the opening direction (14) and in the closing direction (15), and in that at least one of the abutment surfaces (18, 19) has a damping cover (20, 21). 2. Feststellvorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass eine den Anschlag in Öffnungsrichtung (14) des 2. Locking device according to claim 1, characterized in that a stop in the opening direction (14) of the Betätigungshebels (9) bildende Öffnungsanschlagfläche (18) die dämpfende Abdeckung (20, 21 ) aufweist.  Operating lever (9) forming the opening stop surface (18) has the damping cover (20, 21). 3. Feststellvorrichtung nach Anspruch 1 oder 2, dadurch 3. locking device according to claim 1 or 2, characterized gekennzeichnet, dass beide Anschlagflächen (18, 19) die  characterized in that both stop surfaces (18, 19) the dämpfende Abdeckung (20, 21 ) aufweisen.  having damping cover (20, 21). 4. Feststellvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die dämpfende Abdeckung (20, 21 ) als Kunststoffrahnnen ausgestaltet ist, der beide Anschlagflächen (18, 19) und zwei die beiden Anschlagflächen (18, 19) verbindende Begrenzungsflächen (26, 27) der fensterartigen Aussparung (17) abdeckt. 4. Locking device according to one of the preceding claims, characterized in that the damping cover (20, 21) is designed as Kunststoffrahnnen covering both stop surfaces (18, 19) and two the two stop surfaces (18, 19) connecting boundary surfaces (26, 27) of the window-like recess (17). 5. Feststellvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die dämpfende Abdeckung (20) an der Öffnungsanschlagfläche (18) zusätzlich ein Dämpfungselement (22, 23, 24) zur Dämpfung der Bewegung des Betätigungshebels (9) aufweist. 5. Locking device according to one of the preceding claims, characterized in that the damping cover (20) on the opening stop surface (18) additionally comprises a damping element (22, 23, 24) for damping the movement of the actuating lever (9). 6. Feststellvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass auch die dämpfende Abdeckung (21 ) an einer den Anschlag in Schliessrichtung (15) des Betätigungshebels (9) bildende 6. Locking device according to claim 5, characterized in that the damping cover (21) on a stop in the closing direction (15) of the actuating lever (9) forming Schließanschlagfläche (19) zusätzlich ein Dämpfungselement (22, 23, 24) zur Dämpfung der Bewegung des Betätigungshebels (9) aufweist.  Closing stop surface (19) additionally comprises a damping element (22, 23, 24) for damping the movement of the actuating lever (9). 7. Feststellvorrichtung nach Anspruch 5 oder 6, dadurch 7. Locking device according to claim 5 or 6, characterized gekennzeichnet, dass das Dämpfungselement (22, 23, 24) eine Gummieinlage (22) ist.  characterized in that the damping element (22, 23, 24) is a rubber insert (22). 8. Feststellvorrichtung nach Anspruch 5 oder 6, dadurch 8. locking device according to claim 5 or 6, characterized gekennzeichnet, dass das Dämpfungselement (22, 23, 24) in Form von ein oder zwei Blattfedern (24) ausgestaltet ist.  characterized in that the damping element (22, 23, 24) in the form of one or two leaf springs (24) is designed. 9. Feststellvorrichtung nach Anspruch 5 oder 6, dadurch 9. locking device according to claim 5 or 6, characterized gekennzeichnet, dass das Dämpfungselement (22, 23, 24) in Form einer nach innen gerichteten Wölbung (23) ausgestaltet ist.  characterized in that the damping element (22, 23, 24) in the form of an inwardly directed curvature (23) is configured. 10. Feststellvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sich der in Bezug auf die 10. Locking device according to one of the preceding claims, characterized in that in relation to the Klemmbolzenachse (10) radiale Abstand zwischen  Clamping bolt axis (10) radial distance between Begrenzungsflächen (26, 27) der fensterartigen Aussparung (17) in Richtung auf die Öffnungsanschlagfläche (18) zu verringert, so dass der Anschlagfinger (16) bei Annäherung an die Öffnungsanschlagfläche (18) mit zunehmender Kraft zwischen den beiden Begrenzungsflächen (26, 27) eingeklemmt wird. Feststellvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine der Begrenzungsflächen (26, 27) mit einer abgeknickten Blattfeder (25) versehen ist derart, dass sie beim Betätigen des Betätigungshebels (9) in Öffnungsrichtung (14) von dem vorbeigleitenden Anschlagfinger (16) zunächst komprimiert wird, um sich wieder zu entspannen, wenn der Limiting surfaces (26, 27) of the window-like recess (17) towards the opening stop surface (18) is reduced so that the stop finger (16) when approaching the Opening stop surface (18) with increasing force between the two boundary surfaces (26, 27) is clamped. Locking device according to one of the preceding claims, characterized in that one of the boundary surfaces (26, 27) is provided with a bent leaf spring (25) such that upon actuation of the actuating lever (9) in the opening direction (14) of the sliding past stop finger (16 ) is first compressed to relax again when the Anschlagfinger (16) an der Öffnungsanschlagfläche (18) anliegt, und dabei den Anschlagfinger (16) gegen die Öffnungsanschlagfläche (18) drückt. Stop finger (16) abuts the Öffnungsanschlagfläche (18), while the stop finger (16) presses against the Öffnungsanschlagfläche (18).
EP16732630.5A 2015-07-07 2016-06-28 Locking device for an adjustable vehicle steering column Active EP3319862B1 (en)

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DE102015212688.9A DE102015212688A1 (en) 2015-07-07 2015-07-07 Locking device for an adjustable steering column of a motor vehicle
PCT/EP2016/064936 WO2017005535A1 (en) 2015-07-07 2016-06-28 Locking device for an adjustable steering column of a motor vehicle

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CN (1) CN107835770B (en)
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FR3029489B1 (en) * 2014-12-09 2018-06-15 Zf Systemes De Direction Nacam S.A.S. ADJUSTABLE STEERING COLUMN MECHANISM IN DEPTH WITH RETRACTABLE ROD
KR101602182B1 (en) * 2014-12-18 2016-03-11 주식회사 만도 Steering Column for Vehicle
DE102015000419A1 (en) * 2015-01-14 2016-07-14 Leopold Kostal Gmbh & Co. Kg Steering column switch for a motor vehicle
US9393986B1 (en) * 2015-01-29 2016-07-19 Steering Solutions Ip Holding Corporation Steering column clamp mechanism
US9840269B2 (en) * 2015-07-08 2017-12-12 Jtekt Corporation Steering system

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US20180201295A1 (en) 2018-07-19
PL3319862T3 (en) 2020-03-31
ES2758428T3 (en) 2020-05-05
CN107835770A (en) 2018-03-23
WO2017005535A1 (en) 2017-01-12
DE102015212688A1 (en) 2017-01-12
EP3319862B1 (en) 2019-09-11
CN107835770B (en) 2020-08-18
US10633014B2 (en) 2020-04-28

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